China Kieserite Fertilizer Factory | 2025 Kieserite Fertilizer Price & Supply
China Kieserite Fertilizer Factory: Effective Content Determines the Kieserite Fertilizer Price Recently, Rongqing Chemical received a 2025 Kieserite Fertilizer Price inquiry from a client in Indonesia.The customer asked whether we can supply and quote for the following specification:Magnesium (MgO): 28–36%, Sulfur (SO₃): 11%.Our answer is absolutly Yes.Before giving a detailed reply, let’s share some insights into China’s kieserite fertilizer industry. 1. Understanding Kieserite and Its Source As is well known, Kieserite is a widely used dual-nutrient fertilizer containing both Magnesium and Sulfur.It is industrially synthesized by reacting magnesium oxide (MgO) with sulfuric acid (H₂SO₄). Magnesium oxide is derived from natural magnesite (MgCO₃). Rongqing Chemical’s kieserite fertilizer plant is located in Yingkou, Liaoning, known as “China’s Magnesium Capital”, where we have stable access to high-grade magnesite resources.After calcination, High-Quality magnesite yields 92–95% MgO, with other available MgO purity such as 90%, 88%, 80%, 65%, and 52%.When MgO of different grades reacts with sulfuric acid, the resulting kieserite fertilizer price will naturally have varying MgO purity.(For more information about Rongqing Chemical’s kieserite fertilizer factory in China, please watch our Youtube Video: Kieserite Factory Rongqing Chemical). In both Chinese and international magnesium fertilizer standards, the MgO content is the key quality anchor for product classification.Therefore, when Indonesia clients purchase kieserite fertilizer, they always specify the MgO content — since different MgO levels directly affect the kieserite fertilizer price. 2. Common Kieserite Fertilizer from Rongqing Chemical Rongqing Chemical regularly produces and exports the following good sale major types of Kieserite Fertilizers: 1.Kieserite: W-MgO 5% min, Total MgO 20% min2.Kieserite: W-MgO 20% min, Total MgO 25% min3.Kieserite: W-MgO 24–25% min, Total MgO 25% min4.Kieserite with Boron and Zinc:Total MgO 25% min, W-MgO 24–25%, B 1% min, Zn 2% min ✅Product Name: Kieserite Granular (Magnesium Sulphate Monohydrate)✅Granule Size: 2–5 mm✅Color Options: Blue, Pink, White or OEM/ODM…
